Add peeled kiwis to a food processor fitted with a steel blade. Press the "pulse" button until the kiwi is coarsely blended (about 20 pulses).
Once the kiwi is blended to your liking, open up the food processor and pour the kiwi into a pot on the stovetop.
Add 3/4 cup of sugar and juice from 1/4 of a lemon (approximately) to the pot.
Heat the pot to high and stir the mixture.
Watch the pot, and as soon as the kiwi mixture starts to bubble, reduce the heat to simmer.
Cook the kiwi mixture until it thickens, keeping the heat as low as possible while ensuring that the liquid is still bubbling. Stir every 30 seconds to avoid burning the kiwi jam.
Kiwi jam should be thick in about 30 minutes. At this point, turn off the heat.
Pour the jam into a jar to store or serve immediately.